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2020 CUA ABSTRACTS
Unmoderated Poster Session 2: Uro-Oncology, Pediatric Urology,
Sexual Dysfunction, Transplant
UP-2.1 5. Schmit C, Matsumoto J, Yost K, et al. Impact of a 3D printed model
Development of a 3D-printed testicular cancer model for testicular on patients’ understanding of renal cryoablation: A prospective pilot
examination education study. Abdom Radiol 2019;44:304-9. https://doi.org/10.1007/s00261-
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Rebecca Power , Jason A. Hearn , Charles J. Gillis , David R. Harvey , 018-1710-1
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Christopher G. French , Michael K. Organ 2 6. Teishima J, Takayama Y, Iwaguro S, et al. Usefulness of personalized
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1 Faculty of Medicine, Memorial University, St John’s, NL, Canada; Department three-dimensional printed model on the satisfaction of preoperative
of Urology, Discipline of Surgery, Faculty of Medicine, Memorial University, education for patients undergoing robot-assisted partial nephrec-
St John’s, NL, Canada tomy and their families. Int Urol Nephrol 2018;50:1061-6. https://
Introduction: Testicular cancer is the most commonly diagnosed malig- doi.org/10.1007/s11255-018-1881-2
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nancy in young males. Most patients present with a painless nodule on one
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testicle; thus, self-examination is a non-invasive and inexpensive method UP-2.2
that could enable early detection of malignancy. 3D-printed teaching Development of a 3D-printed renal malignancy model for surgical
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models can improve patient education and surgical planning. The objec- planning and patient education
tive of this project is to develop a teaching tool for medical learners and Jason Hearn , Rebecca J. Power , Charles Gillis , Jennifer Young , Michael
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patients to gain a better understanding of testicular malignancies and to K. Organ 3
promote testicular examination (TE). 1 Faculty of Medicine, Memorial University of Newfoundland, St. John’s,
Methods: Four scrotum models were designed, a control model with healthy NL, Canada; Discipline of Radiology, Faculty of Medicine, Memorial
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testes and three models containing a healthy testicle and a testicle with an University of Newfoundland, St. John’s, NL, Canada; Department of
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endophytic mass of varying size. The anatomy, texture, and composition of Urology, Discipline of Surgery, Faculty of Medicine, Memorial University
the models were refined using an iterative process between the design team of Newfoundland, St. John’s, NL, Canada
and urologists. The models were designed in OpenJSCAD and printed using The authors would like to thank MUN MED 3D for their technical support
a Prusa MKS3S printer. The material used for the scrotum and testes was on this project.
Smooth-On Ecoflex 00-30 silicone, and the malignancies were casted in a Introduction: Kidney cancer is a common diagnosis, with a five-year sur-
polylactic acid polymer. The models were assessed by a team of urologists, vival rate of 71%. Surgery plays a critical role in treating cancerous renal
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urology nurse practitioners, and medical learners. Participants were asked masses. Given the complex anatomy of the kidney, the surgical treatment
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to visually inspect and palpate each model and to subsequently provide of renal cancer requires careful preoperative planning and patient coun-
feedback regarding the realism and clinical utility of the developed models. selling. The incorporation of 3D-printed anatomical models has shown
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Results: Participants agreed that the models would be useful teaching tools promise in facilitating the planning of surgical interventions, as well
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for both medical learners and patients. Respondents felt that the models as the explanation of such procedures to patients. The objective of this
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enabled accurate simulation of a TE involving both healthy and pathologic project was to develop a 3D-printed renal malignancy model for use in
testes. Qualitative feedback concluded that the majority of respondents both surgical planning and patient education.
would use these models as a teaching aid in clinic and incorporate it into Methods: A team of urologists, radiologists, and engineers developed a
their practice. 3D-printed model of a kidney with a renal mass. A 3D-rendered image
Conclusions: 3D-printed models can effectively simulate palpation of both was first reconstructed using a computed tomography (CT) scan of a patient
healthy and pathologic testes. These models have the potential to be a diagnosed with a renal mass. This image was used to develop a 3D-printed
useful adjunct in teaching TE and in demonstrating abnormal findings that model that simulated the pathologic kidney. The model was designed in
require further investigation. AutoCAD, finalized with Meshmixer, and casted in silicone using an
References Ultimaker printer. A urologist verified and evaluated the anatomical accu-
1. Trabert B, Chen J, Devesa SS, et al. International patterns and trends racy of the 3D-printed model, as well as assessed the applicability of the
in testicular cancer incidence, overall and by histologic subtype, model for surgical planning and patient education.
1973–2007. Andrology 2015;3:4-12. https://doi.org/10.1111/andr.293 Results: The developed model effectively demonstrated the size, location,
2. Kobayashi K, Saito T, Kitamura Y, et al. Effect of the time from the and overall severity of the renal mass present in the original CT scan. The
presentation of symptoms to medical consultation on primary tumor model also facilitated discussions surrounding the surgical intervention
size and survival in patients with testicular cancer: Shift in the last 2 that would be used to treat the lesion. The clinical experts agreed that the
decades. Urol Oncol 2014;32:43.e17-43. https://doi.org/10.1016/j. model would improve patient understanding and allow for better informed
urolonc.2013.05.007 preoperative consent.
3. Thornton C.P. Best practice in teaching male adolescents and young Conclusion: A 3D-printed renal malignancy model was developed based on
men to perform testicular self-examinations: A review. J Ped Health a CT scan, as well as expert input from both a urologist and a radiologist.
Care 2016;30:518-27. https://doi.org/10.1016/j.pedhc.2015.11.009 Future work will involve improving the structural accuracy of the simulated
4. Rovito MJ, Leone JE, Cavayero CT. “Off-label” usage of testicular renal vasculature to enable detailed surgical planning, as well as assessing
self-examination (TSE): Benefits beyond cancer detection. Am J Mens the utility of the model in clinical practice.
Health 2018;12:505-13. https://doi.org/10.1177/1557988315584942
CUAJ • June 2020 • Volume 14, Issue 6(Suppl2) S57
© 2020 Canadian Urological Association